Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Traffic Conflicts As A Diagnostic Tool In Highway Safety, Charles V. Zegeer, Robert C. Deen
Traffic Conflicts As A Diagnostic Tool In Highway Safety, Charles V. Zegeer, Robert C. Deen
Kentucky Transportation Center Research Report
Because of the shortcomings in accident data, such as incomplete reporting and inaccurate information on accident reports, a need was found for indicators of accident potential. Nearly half of the 209 locations identified in Kentucky as hazardous by accident criteria were found to be falsely identified due to random accident occurrences. Accident repeatability from one year to the next was found to be poor at 60 intersections (r = 0.64) and 170 spot locations (r = 0.59). Up to two years of accident data were found to be necessary to obtain a reliable base of accident data.
Conflict counts were …
Evaluation Of Urban Intersections Using Traffic Conflict Measures, Mike E. Clayton
Evaluation Of Urban Intersections Using Traffic Conflict Measures, Mike E. Clayton
Kentucky Transportation Center Research Report
The purpose of this report was to analyze two urban intersections using conflict data, erratic maneuver data, and near-miss accident data and to recommend site improvements, if necessary. The two intersections selected were Euclid Avenue at Woodland Avenue and New Circle Road at Woodhill Drive in Lexington. Data were taken using 11-hour observation periods.
Proposed improvements for the site on Euclid Avenue included adding dual left-tum lanes and three-phase signals or an extended multi-turn lane. At the New Circle site, a longer, more gradual right-turn lane and repositioning some of the signing are recommended. The conflict data recorded were found …